Cas 717129-75-4,(3S,5R)-2-Hexyl-3,5-dihydroxy-hexadecanoic acid methyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 717129-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,7,1,2 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 717129-75:
(8*7)+(7*1)+(6*7)+(5*1)+(4*2)+(3*9)+(2*7)+(1*5)=164
164 % 10 = 4
So 717129-75-4 is a valid CAS Registry Number.

717129-75-4Upstream product

136807-65-3 2-hexyl-3,5-dioxo-hexadecanoic acid methyl ester

717129-75-4Downstream Products

104801-96-9 (3S,4S,6R)-3-Hexyl-3,4,5,6-tetrahydro-4-hydroxy-6-undecyl-2H-pyran-2-one

717129-75-4Relevant academic research and scientific papers

Highly enantioselective hydrogenation of 3,5-diketo esters: A formal synthesis of tetrahydrolipstatin

Polkowska, Jolanta,?ukaszewicz, Ewa,Kiegiel, Jaros?aw,Jurczak, Janusz

, p. 3873 - 3875 (2004)

Compound 4, obtained via a sequence of two consecutive alkylations of methyl 3,5-dioxohexanoate (5), was transformed into the enantiomerically pure lactone (3S,4S,6R)-2 being the precursor of tetrahydrolipstatin (1). The reaction sequence involves asymmetric catalytic hydrogenation of 4 as a crucial step.

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